Summary:
- Astronaut Butch Wilmore, a veteran of two space shuttle missions and one long-duration stay on the International Space Station, has announced his retirement from NASA.
- Wilmore's career spanned over 30 years, during which he logged over 178 days in space and conducted several spacewalks to maintain and upgrade the ISS.
- His retirement comes as NASA prepares to launch its new Starliner spacecraft, which will provide a new way for astronauts to reach the ISS and continue the agency's exploration of space.